lasker



W. W. LASKER.

PAPER FEEDING DEVICE.

APPLICATION FILED APR. 3. |918.

Patented Sept. 30, 1919.

4 SHEE] S-SHEET 2. Q /64 9 i' u nvenor: W1 'e aau'r,

W. W. L'ASKE'R.l PAPER FEEDING DEVICE.

l. APPLICATION FILED APR. 3. I9I8.'

Patented sept. 3o, 1919.

4 SHEETS-SHEET 3.

W. W. LASKER.

PAPER FEEDING DEVICE.

APPLlcATloN FILED APR.3.1918.

1,317,509. Patentedsept. 30,1919.

UNITED STATES PATENT OFFICE.

WILLIAM W. LASRRR, or BROOKLYN, NEWYORK, A'ssIeNoR To PoWERs`AccoUN'.iINer MACHINE COMPANY, or NEW YORK, N. Y., A CORPORATION orDELAWARE.

PAPER-FEEDING DEVICE.

, Specification of Letters Patent.

Patented Sept. 30, 1919.

Original application led March 28, 1917, Serial No. 158,142. Divided andthis application filed April .3,

1918. Serial No. 226,494.

To all whom t may concern:

Be it known that I, WILLIAM a citizen of the United States, residin inBrooklyn, in the county-of Kings and tate of New York, have inventedcertain new and useful Improvements in Paper-Feed` ing Devices, of whichthe following is a specification.

This invention relates to a printing tabthe printing tabulator isdescribed herein.

as is necessary to show the connection between the matter o f theoriginal applica: tion and the matter divided out and described herein.

While herein and in said application minute details of one of manypossible embodiments of .the invention are described, the invention isnot limited to these since various changes may be made in the details ofcon-.

struction and combination without departing from the spirit and scope ofthe inven,

tion as claimed.

One object of the invention is to improve generally ap aratus of thiskind.

Another o ject is to provide an improved method of feeding, supportingclamping and releasing the paper and of adjusting the amount of feed ofthe paper.

Another -objectv is to provide eiicient means for preventingoverthrow ofthe feedf ing when the machlne is running at highspeed.

Another object is provide a new` and improved method' of mountingl thepaper supporting rolls.

Another ob] ect is to provide an economical and eicient platen forpressing the papel' ,i

against the type.

Still further objects and advantages of the 'present improvement Will beset forth inthe following description and drawings in which, 4 1

Figure 1 is a side elevation of the printing and calculatin mechanismconstituting a part of theprinting tabulator.

W. LAsKnR,

Fig. 2 is an end elevation of the .printing carriage showing oneposition of the parts'. Fig. 3 is asimilar view, parts being broken awayshowing a different position of the parts. q

` Fig. 4.- is a fragmental end elevation showing parts vof the paperfeeding mechanism and thel .release of the same.

Figs. 5 and 6 showlsections taken respectively through the platens andfeed roller. The invention herein relates to a printing tabulator whichis adapted to be actuated by perforated cards, which in their passagethrough themachine operate elements for setting up type commensuratewith the designations on the cardand actuate an accumulating mechanismfor accumulatingy vtherein the data recorded on the-card perforations.whereby the total accumulated data may be computed and then printed byvthe printing elements of the machine.

In said co-pending application there is described a machine whichcomprises a main frame, a main driving shaft, a card feeding mechanism,a card analyzing mechanism and anupper frame 15 (Fig. 1) onwhich the au#z cumulating'and printing mechanism are mounted.

The cards to be analyzed are. disposed in a receptacle and are fed fromsuch receptacle to the analyzing mechanism.

. .Power lis suitably transmitted to the camx4 shaft 17 provided with alplurality of cams from 4which are operated, as explained in saidco-pend-ing application, the various mechanisms of the tabulatingmachine '19, of which it sufiices here to say that these are controlledby the cards fed to the analyzer and operatey the type segments 20 sothat the type 21 'will be positioned to print'items and totals, inaccordance with the cards analyzed, upon a sheet of paper broughtagainst the type `"bythe printing carriage the paper feedingifmechanismof which is now to be described.

The printing carriage, designated generally by reference numeral 28(Fig. 4) is lo-v cated on theprinter tabulator-base opposite the type21' of the tabulating machine 19.

' The carriage 'is su ported at opposite ends,.on the cam shagbrackets29 (Figs. 2 and 3)v and the lever shaft .brackets 31 carried onthe base plate of the printer tabulator. These brackets are tiedtogether at their upper part A'by the tie plates'32 bolted at oppositeends to the upper part of these brackets respectively.

The lever shaft brackets 31 are provided at their upper ends with guideslots 34 in which are received the L shaped carriage supporting brackets35 rovided at their forward ends with antiriction rollers 36 adapted toreciprocate in the elongated openings 37 of the cam shaft brackets.

The supporting lbrackets 35 are formed near their rear ends withuprights 38 between the upper ends of which are carried the railsupporting bar 39. Between the rear ends of said supporting brackets iscarried the arm supporting shaft 40, intermediately of the ends of whichare carried the L sha ed supporting vmembers 42 comprising the orwardlyextending carriag su porting arm 44.l

ntermediately of the ends of the supporting bar 39 are carried theforwardly projecting plates 45 which carry at their forward ends thecarriage rail 46. j The carriage proper comprises end plates 47 heldspaced .apart by thetie rod 48 and the bracket shafts 49. On the bracketshafts are-mounted the rearwardly extending supporting brackets 50 eachprovided with a circular opening adapted to recelve the carriage rail 46this opening being provided l i with a rearwardly extending slot 51adapted y to provide a passage for the plates 45 when ythe carriage isslipped on to the carriage rail. When the carriage has been put in placeit is thus supported lby said carriage rails and Iby the forward ends ofthe arms 44 engaging under the tie rod V48 at the lower forward part ofthe carriage.

Between the end plates 47 is mounted the paper roller shaft 60 carryingpart of the paper supporting and feeding mechanism to be described more1n detail hereafter.

The forward edges of the uprights 38 are each provided with an ear 61 towhich is i v secured a bar 64 to which are secured brack- `ets 68secured to the bracket shafts 49 connecting the end plates.

The prlnting is accomplished by the forward movement\of the papersupporting mechanism which movement brings the paper against type 21 ofthe type sectors. This is accomplished by means of the upper i and lowercarri-agepactuating levers 87 and 88 (Fig. 3) pivoted on the lever shaft89 carried by lever shaft brackets 1.V upper and lower actuating leversare both plvotally mounted on said shaft 89 which when printing takesplace are suitably locked'together, and are oscillated by means of theengagement of the cam roller '-90' engaging in the cam groove 91 of theprinting cam 92 carried on the cam shaft 17. The actuating levers giveone complete cycle of The oscillation once for every revolution of thecam shaft 17 Now will be described the means for supporting the paper onthe carriage.

Onthe paper roller shaft journaled in the end plates 47 (Figs. 4 and6).. are disposed a plurality of paper rollers 118 each provided withv aboss 119 held spaced apart by. means of spacing `bushings 120 (Fig. 5).Between adjacent pairs of the paper rollers and loosely engaging saidbushings are disposed platen support brackets y121 held against rotationby means of the bracket shaft 122 passing through perforations in thelug 123 on the upper part of said brackets, said brackets being held inspaced relation by means of sleeves 124 (Fig. 6) carried on said shaft122. The lower part of each platen support bracket carries a forwardprojection 125 onv which is secured as by means of a screw 126, theplaten support 127 having a recess in its forward end in which iscarried the elastic platen block 128 of rubber or other suitablematerial.

The bushings 120` hold the paper rollers out of frictional contact withthe platen brackets. The bushings and the paper rollers and all theparts rotatable on the paper roller shaft 60 are caused to rotate withsaid Shaft .by means of frictional engagement with each other broughtabout by the clamping of the screw 129 (Fig. 3) on said shaft.

Between each adjacent pair of paper rollers are the upper and lowerinner paper shields 130 and131 (Fig. 5), which form a continuation ofthe cylindrical surface of the paper rollers. These shields have angularextensions 134, each extension having inwardly turned ears 135 eachprovidedwith an opening receiving the bracket shaft 122. The upper innershield 130 is pivotally supported on said rod by said ears, beingpermitted to move pivotally because of the rounded upper face 136,whereby access may be had to the screw 126. This uppershield 130 may beomitted if desired.

Partly surrounding or housing the lower inner shields 131 and the lowerpart of the paper rollers 118 are the outer paper shields 137 providedwith edge flanges 138 on which are formed turned ears'139 provided withopenings receiving the bracket shafts 29 (Figs. 3 and 5). These outershields cooperate with the lower inner shields 131 to form guides forthepaper 140 on ywhich the tabulations arel to be prir'ed, the outershields'being continued upwardly in front of the paper'rollers 118,whereby are formed extensions 144 (Fig. 5) between which the type of thetype sectors pass when the paper is pressedjagainst them by means of theformed small ears 145 provided with perforations in which are carriedrelease arm shafts 146 (Figs. 4 and 5) on which are pivotally carriedthe feed roller levers 147 between the outer ends of which arejourn-aled the paper feed rollers 148, said rollerl engaging on oppositesides of thelower partr of the pa er rollers 118, and passing throughsultable openings in the lower shields 137. These feed rollers are heldin contact with the paper .rollersby means of 'feed roller tensionsprings 149`secured at opposite ends to the journaled pins 150 of therollers. ,levers are'provided with inwardly pointing fingers 152engaging over the release rod 154 guided in elongated slots 155 in theend pieces 47 (Fig. 3). iV'nen this release rod is raised the feedrollers 148 aremoved to the position ofthe dotted lines of Fig. 4, 'outof contact with the paper rollers, for permitting the removal of thepaper. This raising of the release rod isaocomplished by means ofrelease arms 156 mounted on the release arm shaft 157 carried in the endplates 47 and actuated by the release lever 158 (Figs. l, 2 and 3)adapted to be caughtbehind the shoulder 159 ofthe inturned lug 160 onthe end plate 47, to hold the rollers in released position.

After each number is printed by the type of the type sectors, it isnecessary to feed the paper upwardly one or more spaces. This feeding isaccomplished by means of engagement of the teeth of the feed ratchet161, mounted lon the shaft 60 by a two armed feed pawl 162 (Fig. 3)pivotally mounted on the feed pawl lever 164 fnlcrnmed intermediately ason the stud shaft 165 and driven by the link 166, in turn driven by thedrive lever 167 mounted on the feed shaft 168, said shaft being actuatedby the actuating arm 169 fixed on said shaft and adapted to come intocontact with and be moved the abutment shaft 170 carried on the abutmentshaft bracket 171v pivotally mounted on the tie plates 32. The brackets171 are limited in their rearward movement by the engagement, with thetie plates 32, of a shoulder 172 for-med `by the lowclv edge of the lug174 laterally turned at .the rea'r edge of said abutment shaft brackets,and is yieldably held at its rearward limit of movement by a spring175rtensioned between lsaid lug 174 and a lug on the rear part of the shafttie plate 32. l

When the carriage is moved forwardly toward the type storsthe free endfaces 176 of the actuating arm 169 en age and push down the abutmentsha-ft 1 O against the action of the spring 175 until said end faceclears said shaft and permits the shaft and its bracket to he snappedback by the spring 175 until stopped by the shoulder 172. Fig.

The inner ends of the feed roller Adrive lever 167 are raisedthusrocking the pawl lever 164 and lowering the pawl 162, thus turningthe ratchet 161 one or more teeth depending .upon how soon the lowermember 177 of the pawl is permitted to engage the teeth.

Wlhen it 1s desired that the ratchet feed only one vtooth at a time, thefeed limiting lever 178 pivotally .mounted on the upper part of the endplate 47 is set in the position shown in Fig. 3, thus preventing thelower member 177 to continue to engage the ratchet teeth afterithasmoved upwardly a distance of one tooth, since the inclined inner face179 of said member will be engaged by the feed limiting pin 180 mountedon the lower part of the feed limiting` lever.

The feed limiting lever 178 is somewhat resilient andv is provided witha pair of depressions 181 either one of which is adapted to be engagedby a single projection on the inner face of the end plate 47, dependingupon .whether the lever is shifted to the right as shown in Fig. 3, orto theleft. This arrangement serves to hold the lever in shiftedposition. y y

"hen it is desired that the pawl feed more than one tooth of the ratchetat a time, the lever 178 is shifted to the left of Fig. 3, ythus movingthe pin 180 away from the lever pawl member 17 7 permitting said memberto be in engzgement with the ratchet teeth during the downward movementof the pawl member for a distance of, for instance, two teeth. Ifdesired, the parts maybe'so proportioned that three or more teeth may befed at a time.

In order to prevent the feeding of the carriage more than the desired`number of teeth, as when themachine is running at very high speed, thepawl 162 is provided with an overthrow preventing cam 182 adapted toengage between the teeth of the ratchet and the inclined face thereof,whereby the ratchet is prevented vfrom turning an other toothA spaceafter this pawll has ceased to travel in its feeding direction. A spring184 tensioned between the stop member 17,82 and the lever 164 yieldablyholds the pawl in engagement with the ratchet teeth. i

The feeding mechanism'is yieldably held in position to feed by means ofa spring 1-85 ytensioned between the end plate 47 and a .s lprovidealdetentvroller 186 revolubly mounted on` one end of the detent lever187 pivoted to thef'end plate 47and drawn by the spring 188 strainedbetween the other end` of the `detent vlever andthe lower part of the'end l plate'47, lwhereby said roller isyieldably pressed between theteeth of `the ratchet and yieldably holds thelvratchet inthe positionto'which it is fed.

*When it is ydesired to insert, remove r feed the paper entirelyindependently of the feeding mechanism just described, I provide themechanism, shown in Fig." 4 comprising l thelpaper feedgear 189 fixed onthe' 'paper feed shaft 60A and engaged the idlergear 190 rotatablymounted on thenend plate47,

'carrying knur'led knob 192 by whichsaid shaft and gears may be manuallyrotated.y

1 Vhiley the, paper is being fed and during the .time of printing, it is'desirable that it "'ffbe firmly held against theplatens.' This isaccomplished by :means 'of a clamp-ing'mechf janism comprisingajc'lamp'bar-193v (Fig.` 3) i l' carried between/the outer ends of the clamp#ling levers 194 v,provided "with'intermediate" longitudinal -slots 195loosely receivingthe clamp' bar is adapted to move toward"and^ from' the:paperrollers "as well vas to revolve .Whsaid rollers. The.innenend's."ofthe` i 7increments; means movable with said roll A lclamp' "leversfa're provided/with small' pins 196 received' inlongitudinal slots 197' in the y lower ends 'of thejspr'ing levers198"inter,y

' nie'diatelyY fulcrunied onthe end plates 47 and l drawn by alspring'199v strained between'the g upper end of thefspring levers vandthe upper partVM of end plates 47, whereby 4 the clamp lever 194' isyiel'dably drawnl downwardly 'y and the kclamp bar'193 isyieldablypressed against the"paper and the^paper pressed .n L against the paperrolls 118. p'

" inggthe printing. and' feeding of "the paper,

Thisyimaar@ngagemeemaihaias dufbut*y after feeding has taken place, `asabove= described, jthe releasing pin200'mounted ony l *the 1 cam'bracket shaft 201 comes' into 'conltact with the abutment shaft 170'anddorcesv "fthe, cam bracket,I shaft and the cam bracket 202 "to"rock'rearwardlyy whereupon the cam f edge 203 force'sbutwardly the pin 196and 'therewiththe'lever 194'and bar 193 landalso rocks said lever in aidirection clockwise ony Fig. ,3 wher'eupo'n4 the Vbar 193 l"is -rnovedldownwardly overthepaper and 'later takes a fresh/,grip upon thepaper-"when the ciampi" I' ingy lever is releasedrby the camion thejnext'forward movement of "the carriage and i l y s 'fscribed; the*combinationfofva shaft; a yr0.2.

i tatablepaper roll thereon; 'means for `rotating the paperroll byincrements; a clamp moves downwardly ,under theaction Offth@ Spring199.f

y i khforegoing, the'loperation ofthe"y rinting carriage will be easilyunderstood. aper r` is inserted inthe rear opening' be-- tween the outershields 137 and. the inner vlower paper shields '131, and the paperrolls 118-`turnedby means of the knob 192 until the part-on which .it isdesired first to print 'v are opposite the-platen blocks 128. The feedrocate and the printing is effected.4

`I claim as my invention:v 1. In an apparatus of the characterdescribed, the combination of a rotatable paper roll; means for rotatingthe paperl roll by increments;-i and means movable with said roll duringsaid rotation for clampingthe paper thereto. n y l`2.`In an apparatus ofthe character described, the combination of a rotatable paper roll;means for rotating the paper roll by increments; means movable with saidroll during said rotation for clamping the paper thereto; andmeans forreleasing theJ clamping means' and moving the clamping means' in a'-direction opposite to the direction fof said rotation.

3, an apparatus of the character dey scribed, the combination of arotatable paper r`o`1l;\means `for rotating the paper roll by duringsaid rotation forclaInp-ing the paper scribed,the combination ofl apaper roll shaft; a plurality of paper rolls disposed -upon said shaft;means for rotating said rolls byincrements; a clamping bar disposedsubstantiafllyl'para'llel to said 'shaft'and adapted to engage all ofsaid rolls'g'fand means for clamp-vv ing said' barto said rolls duringthe rotation ofthe rolls and :moving the bar ina direction oppositel tothe direction of said rotaltionduringfthe intervals between saidincrements; f

5. In'.l any apparatus of the character described,ftl1e 'combination ofa shaft; a rota-` tablefpaper roll thereon; means for rotating the paperroll' by increments; a clamp bar extending ylongitudinally lon the paperroll; 'and a pair ofclamp levers supportlngsaid clamp" bar andsadaptedto draw the clamp baral ainst the roll.

6; n an; apparatus offvthecharacter kdebar` extending longitudinally onthe paper roll; a pair of clagnplevers between which the clamp bar issupported and provided with slots receiving said shaft; and means'yieldably pressing upon the clamp bar for causing the clamp levers todraw the bar against the roll.

7. In an apparatus of the character de# scribed, the combinationjof arotatable paper roll; means for rotating the paper-roll by in-fcrements; a clamp bar extending longitudinally lof the paper roll; apair of clamp levers between which the clamp bar is supported; lmeansfor yieldably pressing the levers for drawing the bar against the rollduring said increments of rotation; and means for releasing the bar andmoving its backwardly relative to the direction of the rotation ofthepaper roll, during the time between saidincrements of rotation.

8. In an apparatus of the character described, the combination of ashaft; a rotatable paper roll thereon; means for rotating the paper rollby increments; a pair vof clamp levers at opposite ends of the shafteach provided with a longitudinal slot receiving the shaft; a clamp barsupported between the outer ends of the clamp levers; a pin on the innerend of each clampbar; a spring pressed lever having. a slot receivingsaid pin; and a cam adaptedV to engage said pin to lpush said bar awayfrom said roll and to move the bar backwardly relative to the rotationof the paper roll during thc tlme between said increments.

9. In an apparatus of the character described, the combination of ashaft; a rotatable paper roll thereon; means for rotating the paper rollby increments; 'a pair of clamp levers at opposite ends of the shafteach provided with a longitudinal slot receiving the shaft; a clamp barsupported between the outer ends of the clamp levers; a pin 011 theinner end of each clamp bar; a spring pressed lever having a slotreceiving said pirr; a cam bracket having a cam edge engaging said pinfor pushing said bar. away from the roll and for moving the barbackwardly relative to the direction of rotation of the paperroll,during the time between said increments. h

10. In an apparatus of the character described, the combination of areciprocating carriage; ay rotatable shaft carried thereon; a paper rollon saidshaft; a feeding means for the aper roll; a pair of clamp -leversat opposite ends of the shaft each provided with a longitudinal slotreceiving the shaft; a clamp bar4 supported between the outer ends ofthe clamp levers; a pin on the inner end of the clamp bar; a cam brackethaving a cam edge engaging said pin; an actuating member on saidbracket; an actuating arm pivoted on said carriage and operativelyconnected to the ,feeding means; a'Xed su'pport; and an abutment devicecarried on sald support and adapted to engage said actuating arm andmember as the carriage is reciprocated.

11. In an apparatus of the charactery described, the combination of acarriage; a

' feeding means; an abutment carrying part;

means for causing relative reciprocatlon between said part and carriage;an actuatingdevice carried bythe carriage and operativel connected tothe feeding means; and an abutment carried onsaid abutment carrying artand adapted to be rendered inoperatlve when the carriage and part moveAdevice carried on the carriage and operatively connected to the feedmeans; and an abutment means adapted to be rendered inoperative when thecarriage moves in one direction and to actuate the actuating device whenthe'carriagemoves in the opposite direction.

13.v In an apparatus of the character ldescribedfthe combination of areciprocating carriage; a paper supporting and feeding means carried onthe carriage; an actuating device carriedl on the carriage and operably`connected to the feeding means; -and an abutment device adapted tocontact and operate said actuating device when the carriage is moved inone direction and adapted to be contacted and moved out of the path ofthe actuating device when the carriage is moved in the other direction.

14. In an apparatus of the character described, the combination of areciprocating carriage; a paper supporting and feeding means carried onthe carriage; a fixed support; an abutment means pivoted thereon andyieldably pressed in one direction; an actuating device adapted tocontact said a'butment and move vit out of the path of the device whenthe carriage is ymoved in one direction and to be contacted and moved bythe abutment device when the carriage is moved in the oppositedirection; and means operatively connected to the feeding means and theactuating device for feeding paper.

15. In an apparatus of the character d(escribed, the combination of areciprocating carriage; a paper roll shaft carried thereon; a paper.roll and.- a ratchet wheel on said shaft; a fixed support; an abutmentmeans movably mounted thereon and yieldably pressed in one direction;means for limiting the movement of the abutment and move it out of thepath of saidI device when the carriage is moved in' one direction, andto be contacted and moved by the abutment device when the carriage ismoved in the other direction; feeding means engaging said ratchet Wheel;and means operatively connecting the actuating device and the feedingmeans. p

16. In an apparatus of the character described, the combination of areciprocatory carriage; a paper roll carried thereon; a fixed support;an abutment means pivoted thereon andyieldably pressed in one direction;means for limiting the movement of the abutment means in the oppositedirection; an actuating device adapted to contact said abutment andmove' it out of the kpath of the device when the carriage is moved inone direction, and to press said abutment means against the limitingmeans when the carriage is moved in the opposite direction, and then to'be deflected by said abutment means; and feedingmeans'operatively-'connected to the actuating device for feeding thepaper roll.

17. In an apparatus of the character described, the'combination of areciprocatory carriage; a paper roll carried thereon; a pair of'ixedsupports; an abutment bracket pivoted on each support; an abutment shaftsupported between the free ends of said brackets; resilient means foryieldably moving said brackets in one direction; stops for limiting themovement of the brackets in the other direction; an actuating devicecarried by the 'carriage and adapted to contact'said abutment and move`it out of the path of said devi-ce against the action of said resilientmeans when the carri-age is moved in one direction, and to be contactedbyfand positively moved -by the abutment shaft When the carriage ismoved inthe opposite direction; and feeding means operatively connectingthe actuating deviceand the paper roll. p

y18. In an apparatus ofthe character described, 'the combination of areciprocatory carriage; a paper roll carried thereon; a ratchet WheelxedVon the paper roll; a xed support; an abutment pivoted thereon andyieldably pressed in-l one direction; means for limiting the movement ofthe abutment means in the other direction; an actuating shaft carried onthe carriage; an actuating arm carried on said shaft and adapted to becontacted by said abutment means; a drive lever mountedon said shaft; aIpawl lever fulcrumed intermediately on said carriage; a paWl pivoted .toone end of said pavvl lever and engaging said ratchet wl1eel;`and a linkconnecting the opposite end of the pavvl With the free yend of the drivelever. i

WILLIAM W. LAsKER.

Witnesses KILPATRIc-K, H. D. PENNEY.

